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Finding the Fourth Proportional to 247,498.34, 371,253.91 and 79,018.52

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Solution

The fourth proportional to 247,498.34, 371,253.91 and 79,018.52 is: 118,529.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,498.34 : 371,253.91 = 79,018.52 : x
  2. Step 2: Convert to fraction form
    247,498.34/371,253.91 = 79,018.52/x
  3. Step 3: Cross multiply
    247,498.34x = 371,253.91 × 79,018.52
  4. Step 4: Simplify right side
    247,498.34x = 29,335,934,512.41
  5. Step 5: Solve for x
    x = 29,335,934,512.41/247,498.34
  6. Step 6: Final answer
    x = 118,529.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.